Question: What is the diet that is opposite and named after veganism?
Paraphrase: What is the slim down that's inverse and named after veganism?
SPARQL (Wikidata): SELECT ?ans_1 ?ans_2 WHERE { wd:Q181138 wdt:P461 ?ans_1 . wd:Q181138 wdt:P138 ?ans_2 }
Answer: carnism, vegetarianism